fix: uv mode test failure for non-venv python

[frostming]

Signed-off-by: Frost Ming me@frostming.com

Fix #3698

Pull Request Checklist

• A news fragment is added in news/ describing what is new.
• Test cases added for changed code.

Describe what you have changed in this PR.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 85.97%. Comparing base (312f2fb) to head (c1ea75d).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3699      +/-   ##
==========================================
+ Coverage   85.95%   85.97%   +0.01%     
==========================================
  Files         119      119              
  Lines       12403    12402       -1     
  Branches     2058     2057       -1     
==========================================
+ Hits        10661    10662       +1     
+ Misses       1167     1166       -1     
+ Partials      575      574       -1     

Flag	Coverage Δ
unittests	85.82% <100.00%> (+0.01%)	⬆️

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